问题
选择题
If you go by _________train, you can have quite a comfortable journey, but make sure that you get＿fast one.
A．the; the
B．/; a
C．the; a
D．/; /
答案
答案：B
考查冠词的用法。第一空：用介词by后用交通工具，不需要加冠词，如by train，第二空：后面出现one,需要加不定冠词a,所以选B。